The aim of this study was to investigate the association between Cardiorespiratory fitness with cognitive flexibility in students.38 students were randomly selected from physical education students of kurdistan university and those who had qualified on the basis of the relevant questionnaire (age: 22.23±1.60-year, weight: 70.82±6.88 kg). To estimate Cardiorespiratory fitness, by using Bruce test, maximal oxygen uptake of subjects was measured and to assess the cognitive flexibility, the computerized Wisconsin card sorting test was used. By using descriptive statistics and pearson correlation coefficient, statistical analysis of the data showed that, there is no significant correlation between maximal oxygen uptakes with variables of Wisconsin card sorting test. These finding suggest that, there is no significant relationship between Cardiorespiratory fitness and cognitive flexibility in students.

Cardiorespiratory fitness tests have been always paramount and comprehensive evaluator for the different fitnesslevels. However, these are sophisticated techniques, time consuming, and usually expensive. Design andmanufacture of various sport equipments, especially in the field of Cardiorespiratory fitness have exceptionalimportance. The aim of the present study was to design and manufacture a portable multifunction device forestimating the Cardiorespiratory fitness for the Step Tests. 110 physically active young men (age: 18 to 22 years)have been chosen and divided into 11 experimental (Strand-Rhyming, Billi-Mirwald, Techomesh, Cotton, Queens,McArdle, East-Michigan, Hodkins-Scobik, OSU, YMCA, Harvard step test) groups and each group performed atest by the device. Microcontroller-based hardware was designed and programmed with the Basic language. In thisdevice, 11 different standard step test programs designed. In order to assess the agreement of the instrument duringthe different step tests, the estimated value obtained by the designed device and the routine method (manualprocedure and calculations). To assess the reliability of estimated values in different tests, the test-retest methodwas implemented. Results of statistical method using Bland-Altman and Intraclass Coefficient Correlation (ICC)showed that estimated Cardiorespiratory fitness using designed device has very high agreement to the criterion(P≤0.001). According to the results, it can be concluded that designed multifunction device can be used as anaccurate portable alternative system for estimating Cardiorespiratory fitness in Step Tests.

Cardiorespiratory fitness tests have been always paramount and comprehensive evaluator for the different fitness levels. However, these are sophisticated techniques, time consuming, and usually expensive. Design and manufacture of various sport equipments, especially in the field of Cardiorespiratory fitness have exceptional importance. The aim of the present study was to design and manufacture a portable multifunction device for estimating the Cardiorespiratory fitness for the Step Tests. 110 physically active young men (age: 18 to 22 years) have been chosen and divided into 11 experimental (Strand-Rhyming, Billi-Mirwald, Techomesh, Cotton, Queens, McArdle, East-Michigan, Hodkins-Scobik, OSU, YMCA, Harvard step test) groups and each group performed a test by the device. Microcontroller-based hardware was designed and programmed with the Basic language. In this device, 11 different standard step test programs designed. In order to assess the agreement of the instrument during the different step tests, the estimated value obtained by the designed device and the routine method (manual procedure and calculations). To assess the reliability of estimated values in different tests, the test-retest method was implemented. Results of statistical method using Bland-Altman and Intraclass Coefficient Correlation (ICC) showed that estimated Cardiorespiratory fitness using designed device has very high agreement to the criterion (P≤ 0. 001). According to the results, it can be concluded that designed multifunction device can be used as an accurate portable alternative system for estimating Cardiorespiratory fitness in Step Tests.